Nice all-around bow. 1 3/8" isn't all that narrow in my book for osage, but it looks like you really made it work well for you. The only constructive criticism I have is about that 2nd picture. Looks like you could've cleaned up the growth ring a little more with a rounded scraper. I don't know if it really matters for performance or longevity, but that's what aesthetics tells me.
John